详细信息按钮无法推送信息。推送的页面总是有空标签
您好,请帮助我....
问题是这样的:一切似乎都很好..一旦我点击详细按钮,我就可以推送到另一个页面。但是,我能够推送到的页面始终只是一个视图,没有任何值传递到标签中。我在视图中的所有标签里面什么都没有。我在这里做错了什么或有任何错误的概念吗?
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
BOOL isRed = NO;
//BOOL isPurple = YES;
if([annotation isKindOfClass:[MyAnnotation2 class]])
isRed = YES;
MKPinAnnotationView *pinView = nil;
if(isRed) {
static NSString *redPin = @"redPin";
pinView = (MKPinAnnotationView *) [mapView dequeueReusableAnnotationViewWithIdentifier:redPin];
if (!pinView) {
pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:redPin] autorelease];
pinView.pinColor = MKPinAnnotationColorRed;
pinView.animatesDrop = YES;
pinView.canShowCallout = YES;
UIButton *detailButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
pinView.rightCalloutAccessoryView = detailButton;
}
else{
pinView.annotation = annotation;
}
}
else {
static NSString *greenPin = @"greenPin";
pinView = (MKPinAnnotationView *) [mapView dequeueReusableAnnotationViewWithIdentifier:greenPin];
if (!pinView) {
pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:greenPin] autorelease];
pinView.pinColor = MKPinAnnotationColorGreen;
pinView.animatesDrop = NO;
pinView.canShowCallout = YES;
UIButton *detailButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
pinView.rightCalloutAccessoryView = detailButton;
}
}
return pinView;
}
//
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
NSLog(@"calloutAccessoryControlTapped");
if (self.patientDetailsViewController == nil) {
self.patientDetailsViewController = [[[PatientDetailsViewController alloc] initWithNibName:@"PatientDetailsViewController" bundle:nil] autorelease];
}
MyAnnotation2 *selectedObject = (MyAnnotation2 *)view.annotation;
_patientDetailsViewController.nric = selectedObject.title;
NSLog(@"%@",_patientDetailsViewController.nric);
[self.navigationController pushViewController:_patientDetailsViewController animated:YES];
}
Hi can some1 plz help me....
The problem is this: Everything seems alright.. i am able to push to another page once i tap on the detailButton. However, the page which i am able to push to is always only a view without any values passed into the labels. All my labels in the view have nothing inside.. Am i doing something wrong or any wrong concept here?
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
BOOL isRed = NO;
//BOOL isPurple = YES;
if([annotation isKindOfClass:[MyAnnotation2 class]])
isRed = YES;
MKPinAnnotationView *pinView = nil;
if(isRed) {
static NSString *redPin = @"redPin";
pinView = (MKPinAnnotationView *) [mapView dequeueReusableAnnotationViewWithIdentifier:redPin];
if (!pinView) {
pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:redPin] autorelease];
pinView.pinColor = MKPinAnnotationColorRed;
pinView.animatesDrop = YES;
pinView.canShowCallout = YES;
UIButton *detailButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
pinView.rightCalloutAccessoryView = detailButton;
}
else{
pinView.annotation = annotation;
}
}
else {
static NSString *greenPin = @"greenPin";
pinView = (MKPinAnnotationView *) [mapView dequeueReusableAnnotationViewWithIdentifier:greenPin];
if (!pinView) {
pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:greenPin] autorelease];
pinView.pinColor = MKPinAnnotationColorGreen;
pinView.animatesDrop = NO;
pinView.canShowCallout = YES;
UIButton *detailButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
pinView.rightCalloutAccessoryView = detailButton;
}
}
return pinView;
}
//
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
NSLog(@"calloutAccessoryControlTapped");
if (self.patientDetailsViewController == nil) {
self.patientDetailsViewController = [[[PatientDetailsViewController alloc] initWithNibName:@"PatientDetailsViewController" bundle:nil] autorelease];
}
MyAnnotation2 *selectedObject = (MyAnnotation2 *)view.annotation;
_patientDetailsViewController.nric = selectedObject.title;
NSLog(@"%@",_patientDetailsViewController.nric);
[self.navigationController pushViewController:_patientDetailsViewController animated:YES];
}
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不要对标注附件按钮使用您自己的目标/操作和标记。
相反,使用 MKMapViewDelegate 方法
calloutAccessoryControlTapped:
。删除addTarget
行并实现委托方法。在该委托方法中,您可以使用以下方式访问点击的注释:
Don't use your own target/action and tagging for the callout accessory button.
Instead, use the MKMapViewDelegate method
calloutAccessoryControlTapped:
. Remove theaddTarget
line and implement the delegate method.In that delegate method, you can access the annotation tapped using: